The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Assembly and details machine drawing pdf slideshare. Modelling and analysis of drilling jig for mounting casing of. Spiral layout and indexing jig upper valley woodturners. It is a supporting device which holds the work, guides the tool and also locating work piece in its position during machiningdrilling process. Drill jig is successfully designed for mounting casing of electric motor. In indexing fixture following factors are considered 1the work piece should be positively located and clamped on the fixture independently of the indexing mechanism 2the indexing device should be both rapid in action and positive in location. International journal of engineering research and general science volume 2, issue 2, febmar 2014. So jigs and fixtures are used and serve as one of the most important facility of mass production system. Unit 3 design of jigs design of jigs national institute of. These are special work holding and tool guiding device.
When indexing a machine part, its new location is known to within a few hundredths of a millimeter thousandths of an inch, or often even to within a few thousandths of a millimeter tenthousandths of an inch, despite the fact that no elaborate measuring or. Ample space should be left between the jig body and the component for hand movements. The design and need for jigs and fixtures in manufacturing. The drill jig provides interchangeability to the mounting casing. Examine thoroughly, the external and internal features of the individual parts. Experimental procedure initially in the beginning of the operation the work piece is fixed in the drill jig after fixing the job the scale is checked and it is locked by a nut. Girish assistant professor department of mechanical engineering, mlr institute of technology, hyderabad abstract the employment of jigs and fixtures is an important aspect of workshop engineering for the. It is a supporting device which holds the work, guides the tool and also locating work piece in its position during machining drilling process. This is the most basic type and the simplest form of drill jig used when only a few parts are to be produced. Interchangeability is one of the advantages of jigs. The jig is intended for drilling holes at the two faces of the flanges, four in one side and two in the other. The workpiece is clamped to the indexing plate with use of a cwasher. This book is suitable to the engineering students of b.
Understand the purpose, principle of operation and field of application of the given machine. The cad files and renderings posted to this website are created, uploaded and managed by thirdparty community members. Indexing in reference to motion is moving or being moved into a new position or location quickly and easily but also precisely. Jig design guidelines the process of inserting and withdrawing the component from the jig should be as easy as possible.
The modelling of drill jig is by using catia v5r20 software. The drill 21 is guided through these holes of the template 2 and the required holes are drilled on the workpiece at the same relative positions with each other as on the template. Aug 04, 2015 the application of jigs and fixtures in manufacturing operations lead to the production of faster, more accurate, and reliable products at a reduced cost. Workpiece and leaf jig for workpiece assembly drilling. Used for parts that must be machined on more than one side. Also, you can create a jig and fixture by yourself to do an operation easily. There are several types of jigs and fixtures available in the market.
In some instances, the entire surface may be machined. Oct 06, 2016 assembly and details machine drawing pdf 1. Spiral layout and indexing jig michael foster, breezy hill turning after posting a picture of lobelia, several people asked how i laid out the carving. Indexing fixture a fixture that changes position with regular step like movements. Drill guide for use with indexing on lathe the need for this jig arose when i decided to embellish an icicle ornament with swarovski crystal rhinestones. Commercial jigs are available, but when i saw the bushings available from lee valley, decided to try my hand at making one. This indexing drill jig is used to create four equally spaced radial holes in a workpiece. Design and analysis of indexing type of drill jig iosr journal. This is an improvement of the template type of jig. Pdf design of jigs, fixtures and press tools researchgate.
Drill jig consists of a clamping device to hold the part in the position under hardened steel bushings. By means of indexing device a hole is drilled then the work piece is moved indexed to next position under the drill bush for drilling automatically. How to subtract a part from another part in assembly duration. The responsibility of maintain the accuracy of the hole is now shifted from the operator and given to the jig.
Drill passes through the steel bushings during drilling operation. Abstract an automatic indexing drill jig has been designed and fabricated and installed in. The work piece can be clamped to the plate and holes can be drilled. An automatic indexing drill jig has been designed and fabricated and installed in a drilling machine.
This video make by vishwakarma engineering drawing classes, bhilai nagar. The drill jig may be clamped to the sheet, in which holes are to be drilled, by means of thumb screws. While the subjectsof drilling and jig design are closely allied, it is no longer. A plate 2 having holes at the desired positions serves as a which is fixed on component 1 to be drilled.
Drill jig helps to drill, ream and tap at a much faster speed and. Jul 26, 2015 this is a typical example of drilling four holes which are equi. Design and fabrication of work holding device for a drilling machine. Fig 16 assembly view of the final product in catia. I start by deciding how many spirals the piece is to have. May it be a drill jig or a drill fixture the necessity of a clamping device is inevitable. Types of drill jigs and fixtures machine tools engineering. Mfg tooling 07 jig design university of northern iowa.
If you continue browsing the site, you agree to the use of cookies on this website. Design and fabrication of work holding device for a drilling. Revised feb262019 chop source frame jig assembly instructions. A jig is a workholding device that supports, holds, locates a workpiece and also guides the cutting tool for the desired machining operations. Itcd 301001 jigs and fixtures fixture means through which a part is securely fastened to the machine tool table to accurately locate, support and hold the part during the machining operation jig a special class of fixture which in addition to providing all the functions above, also guides the cutting tool during machining. The rotating pin and indexing plate are locked in place with the indexing lever and a locking pin. Drill jig helps to drill, ream and tap at a much faster speed and with great accuracy as compared to holes done conventionally by hand.
Template drill jig this is a simple plate of metal or wood which has holes at correct location to be made in the workpiece. This complete 3d printermade jig assembly is designed specifically for ar15 mil. The main purpose of indexing drill jig is to eliminate. The drawing on page 2 shows the complete jig with rotisserie stand. Indexing jig is used to drill holes which are spaced equally along a circle. Oct 14, 2016 drill jig, cosiderations to design a drill jig, drill jig types slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Drilling jig is used for mass production and effective cost operation. Drill jig is device to ensure a hole to be drilled, tapped or reamed in the workpiece at proper place. Some means of ejection should exist to release the component if it sticks in the jig.
This content and associated text is in no way sponsored by or affiliated with any company, organization, or realworld good that it may purport to portray. Worked examples for jigs and fixtures design of jigs. Design and fabrication of indexing set up for drill jig. If it is an even number, or one that i can use the indexing on my lathe to lay out, ill use that. International journal of engineering research and general. Next, the chapter discusses a design of a box jig for a pipe elbow having flanges at the two ends which are orthogonal. Template jig can serve as layout guide for locating holes and contours. The jig must, ofcourse, haveholesthe sizeof the drill, which are. Difference between bending and drawing blank development for above. This jig is used for quick drilling of equidistant holes on the circular surface of the work piece. The official platform from autodesk for designers and engineers to share and download 3d models, rendering pictures, cad files, cad model and other related materials. In this example four equally spaced holes are to be drilled on the periphery of the workpiece. In place of simple holes, drill bushes are provided in the plate to guide the drill.
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